Canon imageRUNNER ADVANCE C5051 Series Service Manual page 472

Startup■Failure■Analysis■Policy
Startup■Failure■Analysis■Policy■describes■troubleshooting■related■to■"Execution■Flow■for■
Control■Panel■Startup■Failure"■for■the■All-night■Power■Supply■(3.3V)■and■12V■Power■Supply.
If■the■host■machine■does■not■start■successfully■even■when■its■Power■Switch■is■turned■ON,■
identify■the■location■of■the■failure■by■referencing■the■following■diagram.
Select■the■appropriate■failure■location■identification■procedure■based■on■the■display■status■
of■the■Control■Panel.
Preconditions
If■the■following■two■parts■are■not■operating■with■the■main■power■turned■ON,■it■is■likely■that■a■
failure■has■occurred.
•■ Control■Panel■Main■Power■LED■(All-night■Power■Supply■3.3V■system)
•■ Rotation■noise■of■the■motor■at■warm-up■rotation■and■activation■of■the■Control■Panel■
Backlight■(12V■system)
Power-On
Not lit
Lit
Solid black Only the bar is displayed
"NG" is displayed
as a result in the startup system
failure diagnosis
No
Interchange of the DIMMs
Countermeasures related to system software
Flow A：
- Reinstall the system.
Execution Flow for Control Panel Startup Failure
- Replace the HDD.
Memo
•■ The■DIMMs■may■have■failed■if■symptoms■change■when■the■host■machine■is■restarted■after■
completing■"interchange■of■the■DIMMs"■on■the■Main■Controller■1
•■ It■may■take■about■5■minutes■or■more■to■display■E■602-4000.
6
Troubleshooting■>■Startup■System■Failure■Diagnosis■>■Startup■Failure■Analysis■Policy
Flow A：
Execution Flow for Control Panel Startup Failure
The logo is displayed Display of E-code
Procedure A:
Yes
Detailed Procedure
Refer to the error code
of Startup System
correspondence table
Failure Diagnosis
for countermeasures
6 Troubleshooting■>■Startup■System■Failure■Diagnosis■>■Startup■Failure■Analysis■Policy
Reference:
Interchange of the DIMMs
Turn OFF the power
↓
Disconnect the power plug
Interchange of the DIMMs
J2032
J2031
DDR2-SDRAM
512 MB + 512 MB
Turn ON the power
F-6-23
6-18
F-6-24
6-18